Im no engine expert so i don't know whats happened. To me it looks like parts of the ceramic wheel have somehow ended up in the cylinders & scratched the bores. The compressor wheel stull looks to be ok but the shaft has some resistance & dosent spin freely.Ether way the engine & turbo are both rooted & will be replaced/upgraded

I have actually heard of RB26 in particular sheetting exhaust wheels, and back pressure blowing bits of broken turbine wheel back into the engine. Never personally seen it, but it would definitely cause the damage you are describing.

Not good either way Not an overly difficult engine to rebuild, be a good learning experience!

EDIT: This post regarding lifting off under heavy decel at the point of turbo failure does make a degree of sense in regards to parts of the shattered turbine wheel being sucked back into the engine. Id say you just got unlucky dude.

Over the next 6 months I will replace the valves with jun 1mm over sized valves & guides put in a new gasket kit reassemble it & stick some new -5 turbos on the side then nistune & corn juice with flex fuel